Improvement in pitching- barrels



anni @Wina JQP. BENOIT, or DETROIT, Mio-Hierin.

Letters Patent No. 96,076, dated October '26, 1869.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom 'it may concern.-

Be it known that I, J. P. BENOIT, of Detroit,`in the county of Wayne, and'State of Michigan, have invented a new and useful Improvement in itching Barrels; and I do hereby declare that the following is ay full, clear, and exact description thereof, which will enable those skilled in the art to make and use the same, reference being hadto the accompanying drawings, formingpart of V this specification.

The invention relates to an improvement upon the means usually employed to ,pitch barrels and analogous articles, and consists in the combination of a series of pipes and valves, whereby the cool current of air from the blower may be diverted from the fire and turned upon the pitched barrel or other article, for the purpose of cooling the same.

In the accompanying sheet of drawipgs- Figure 1 represents a side elevation of the furnace partly in section, as through .the linea a: of iig. 2.

Figure 2 is a horizontal section looking from the line y y of g. 1.

Similar letters of reference indicate corresponding parts. Y

A is the furnace, which is cylindrical in form, mounted in an upright position on a frame, B, which is supported on wheels C, so that the furnace may be readily transported from place to place.

Df-is the ash-pit of .the furnace,L which is also an air'cha'mber for receiving a current of air from a blower of any suitable description.

E is the pipe which conveys the air from the blower into the chamber, the same being connected lwith the blower, or with a pipe from the blower 'by means of the ange F.

G and E are valves,'by which the current ofair from the blower is changed from the air-chamber D, into a discharge-pipe attached-to the pipe I.

This change is made when it is desired to force cold air into the barrel for cooling the pitch.

The grate J is placed a short distance above the chamber D.

The heated gases and gaseous products of combustion are forced from the furnace by the current of air from the blower through the grate and fuel, and into the tubes K. One or more of these tubes may be used.

L represents discharge-pipes, which are slipped on to the tubes K, from which the air is conducted to the barrel to be pitched. By the heated air and gases thus introduced, the barrel becomes heated to such a degree that the pores of the woodar'e opened and the pitch is melted or rendered so liquid by the heat that it readily enters and fills the pores, the barrel being rolled or agitated, so that the liquid pitch is brought in contact with the entire inner surface of' the barrel. When this is accomplished, and a sulicient quantity of pitch adheres to the surface, cold air may be intro` duced from the cold-air pipe I, to expedite the cooling.

M represents the cover for the aperture in the top of the furnace, through which the fuel is introduced, and will act as a safety-valve on the furnace. flhis method is applicable to barrels, casks, andkegs, of every description, for the purpose described.

In the above description, I have detailed the various parts of an apparatus to which my improvement is preferably attached, brit merely for the purpose of more perfectly exhibiting the operation of the pipearrangement.

I am awarethat the` furnace is, in all essential respects, without patentable novelty; but

What I do esteem as of my invention, andv desire to protect by Letters Patent, is

As an attachment to a pitching-furnace, a system of pipes, E F I, and valves G H, arranged with respect thereto, in the manner shown and described, and

for the purpose specied. f

J. P. BENOIT.

Witnesses PETER GUENTHER, WM. Sonnen. 

